Sunday, August 20, 2006
RSM資料產生方式
C7儲存格(如上列公式)
(1)產生200 persons各theta, (2)再產生各題的step 困難度: (3)RSM資料產生方式如上式,1-5的選項產生,第6列為各題的thresholds的難度ranges(各題相同),(4)如果是PCM則由亂數產生器直接產生即可,RSM則予調整至range相同(用c2=c5-c6即可違成).
除此之外,資料產生另以期望值做為來源,即a1-a6間與excel的rand()比較
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posted by Smile Chien @ 4:53 PM
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